{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LZMAP7PAXO6TR73CFYOWB7WWI5","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"059606be4c8c439c146c8ab2d81611afd679357a51e85d4abad7b70f3b4f55ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-05-15T10:53:58Z","title_canon_sha256":"b4b99fcb1d49461ef7059f2734e41ea606de0d8d5b9ce0a1c2da4d4e7c438539"},"schema_version":"1.0","source":{"id":"1805.05701","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.05701","created_at":"2026-05-18T00:15:53Z"},{"alias_kind":"arxiv_version","alias_value":"1805.05701v1","created_at":"2026-05-18T00:15:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05701","created_at":"2026-05-18T00:15:53Z"},{"alias_kind":"pith_short_12","alias_value":"LZMAP7PAXO6T","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LZMAP7PAXO6TR73C","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LZMAP7PA","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:b500fbf4e312a995873cc29d0e13b79623dbd140dc335c7312cbdb6f9c812b80","target":"graph","created_at":"2026-05-18T00:15:53Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The last decade has seen a strong increase of research into flows in fractured porous media, mainly related to subsurface processes, but also in materials science and biological applications. Connected fractures totally dominate flow-patterns, and their representation is therefore a critical part in model design. Due to the fracture's characteristics as approximately planar discontinuities with an extreme size to width ratio, they challenge standard macroscale mathematical and numerical modeling of flow based on averaging. Thus, over the last decades, various, and also fundamentally different,","authors_text":"Eirik Keilegavlen, Florian Doster, Inga Berre","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-05-15T10:53:58Z","title":"Flow in fractured porous media: A review of conceptual models and discretization approaches"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05701","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:fe6bfc7fc49b88795046da537514158663bddb0ac5f4f6b5b2731ef3ab123a4c","target":"record","created_at":"2026-05-18T00:15:53Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"059606be4c8c439c146c8ab2d81611afd679357a51e85d4abad7b70f3b4f55ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-05-15T10:53:58Z","title_canon_sha256":"b4b99fcb1d49461ef7059f2734e41ea606de0d8d5b9ce0a1c2da4d4e7c438539"},"schema_version":"1.0","source":{"id":"1805.05701","kind":"arxiv","version":1}},"canonical_sha256":"5e5807fde0bbbd38ff622e1d60fed64759a0440ee32ec758d85d7a557081ef3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e5807fde0bbbd38ff622e1d60fed64759a0440ee32ec758d85d7a557081ef3b","first_computed_at":"2026-05-18T00:15:53.967523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:53.967523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KtjN6jjkKKEhMguqCTDMIJPHDaTJLR24t11bhMKt74fud9sFY638LwuEnJst43MhIb0uh6vCgfHaWFYjI36VBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:53.968166Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.05701","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe6bfc7fc49b88795046da537514158663bddb0ac5f4f6b5b2731ef3ab123a4c","sha256:b500fbf4e312a995873cc29d0e13b79623dbd140dc335c7312cbdb6f9c812b80"],"state_sha256":"e81b67458d1cef14bf23659432a4001f4b39854ebc4be122c95573e790072d1c"}